JPH0617A - Combine engine equipment - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] To reduce the noise of the combine engine and improve ventilation in the engine room. [Structure] The engine (21) is provided in the engine room (34) below the seat column (24), and the radiator (2) is provided below the step (25) in front of the seat column (24).
2) The fans (26) for cooling the blower are respectively arranged, and the air inlet (33a) of the air passage guide (33) provided in the air inlet (31b) on one side of the fan (26) is provided in the engine room (34). To face.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an engine device for driving various parts such as a traveling part of a combine and a threshing part.

[0002]

2. Description of the Related Art In existing combine harvesters, an engine radiator is integrally provided at one of the left and right sides of the engine, which is located outside the fuselage, in a position close to the engine, to cool the radiator by blowing air. Also, radial type fans are generally used.

[0003]

However, in the case of such an engine structure, since the cooling air opening portion of the radiator cannot be closed, the opening ratio of the engine room becomes high, and the engine and fan are not opened. The drive sound is noisy, and there is a drawback that it is not suitable for the current situation where a low noise type combine is desired.

[0004]

SUMMARY OF THE INVENTION Therefore, according to the present invention, an engine is provided in the engine room below the seat column, and a fan for cooling the radiator blower is provided below the step in front of the seat column. By exposing the intake port of the air passage guide provided at the intake port to the inside of the engine room, it is possible to isolate the engine from the radiator and realize a low noise structure with a large degree of airtightness in the engine room. Can be compactly arranged integrally with the fan drive unit, and the engine room can be well ventilated, and stable engine performance can be maintained.

[0005]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 is a perspective explanatory view of an engine part, FIG. 2 is an overall side view of a combine, FIG. 3 is a plan view thereof, and (1) in the figure is a track frame in which a traveling crawler (2) is installed,
(3) is a machine frame installed on the track frame (1),
(4) is a threshing section in which the feed chain (5) is stretched on the left side and the handling cylinder (6) and the processing cylinder (7) are built in, (8)
Is a mowing section equipped with a cutting blade (9) and a grain culm transport mechanism (10), (11) is a hydraulic cylinder for moving the mowing section (8) up and down through a main frame (12), and (13) is an exhaust chain. (14) The straw processing unit that faces the end, (15) is a grain tank that carries the grain from the threshing unit (4) through the lifting cylinder (16), and (17) is the tank (15). A discharge auger for discharging grains out of the machine, (18) is a driving operation unit (1
9) and a driver section including a driver's seat (20), and (21) is an engine provided below the driver's seat (20), and is configured to continuously mow grain culms and thresh.

As shown in FIGS. 4 to 8, the engine (21) is separated from the engine radiator (22) for cooling the combustion chamber of the engine (21), and the radiator (22) is operated. The driver's seat (20) is arranged below the driving operation column (23) of the operating section (19).
The engine (21) is disposed in a seat column (24) which is a substantially closed box-shaped seat column case supporting the upper surface of the engine, and the step (25) lower portion between the seat column (24) and the operation column (23) is arranged. In addition, a sirocco fan (26) that blows air to the radiator (22) to radiatively cool the radiator (22) is arranged to reduce noise of the engine (21) and the radiator cooling fan. Is configured.

On the right side of the seat column (24), a right side column (27) having a hollow interior is arranged, and an outside air intake port (28) formed on the right outer wall of the column (27). ) From the lower front end of the left inner wall of the column (27) to the right inlet (31a) of the sirocco fan (26) on the right outer side of the fan casing (30). The radiator (22) is blown into the fan (26) through the air to blow air to the radiator (22) for heat radiation and cooling of the radiator (22). The inside of the column (27) is the sirocco fan. It is formed in the air suction air passage (32) of (26).

Further, a left suction port (31b) similar to the right side is opened on the left outer surface of the fan casing (30),
The fan casing (3
0) The air inlet (33a) of the air passage guide (33) fixed to the left outer surface of the engine (0) is made into a substantially hermetically sealed engine enclosing room (34) (engine (21) as a whole) inside the seat column (24). The air in the engine enclosed room (34) is directed to the sirocco fan (26) through the ventilation air passage (35) formed in the air passage guide (33) with the covering engine room (hereinafter referred to as "this"). ) From the left side of the sirocco fan (26) to prevent dust and the like from being generated at the reaper (8) on the left side of the sirocco fan (26) to prevent clogging of the dust net such as the radiator (22). is doing.

Furthermore, the sirocco fan (26)
The air passage casing (36) for guiding the cooling air from the radiator (22) to the radiator (22) is integrally provided between the fan casing (30) and the radiator (22), and the air outlet (31c) of the fan casing (30) is provided. ) Is integrally connected to the rear part of the air duct casing (36) via bolts (37), and the air duct casing (36) and the radiator (2) are connected.
Pivot plates (38) (3) fixed to the left and right sides of (2) respectively.
9) are integrally connected via bolts (40). A receiving member for fixing the upper and lower support plates (41) (42) fixed to the upper and lower ends of the air passage casing (36) to the left and right side surfaces of the operation column (23) and the front end side of the machine base (3). (4
3) (44) is connected and supported via a vibration-proof rubber (45), and the radiator (22) and each casing (30) (3) are supported.
It is configured to integrally support the three members of 6) at the lower part of the step (25) in order to prevent these vibrations from being transmitted to the step (25).

Further, an oil cooler (47) of a hydraulic type continuously variable transmission (HST) (46) for shifting the traveling speed is arranged in front of the radiator (22), and a fan is attached to the radiator (22). The casing (30) and the oil cooler (47) are deviated with their right ends in plan view aligned, and in the deviated surplus space on the left side of the fan casing (30),
The transmission system (46) integrally mounted on a drive system such as an input pulley (48) fixedly installed on the air passage guide (33) or a fan shaft (26a) of the sirocco fan (26) and a transmission case (49). The two water hoses (50) and the transmission mechanism (which are arranged and connect the left side surplus space of the fan casing (30) and the oil cooler (47) substantially in parallel between the engine (21) and the radiator (22). 46) and an oil cooler (47) are used for a hose path such as a hydraulic hose (51), which enables these compact arrangements.

Further, the radiator (22) is provided in a forwardly inclined posture in which the radiator (22) is inclined forward toward the upper end thereof, and the water hose (5) is
Maintenance of the radiator (22) by projecting the cooling water inlet / outlet (52a) (52b) and the drain port (53) of the radiator (22) connecting the (0) to the front side of the radiator (22). In addition, it is configured to improve workability in drainage work using the drain port (53).

The fan shaft (26a) of the sirocco fan (26) and the flywheel (54) of the engine (21).
The crank output shaft (21a) via the fan shaft (26a) is arranged substantially parallel to the left-right lateral direction, and is connected to the output shaft (21a) via the universal joint shaft (55) and the counter shaft (56). ) Are interlockingly connected, and the counter shaft (5) is attached to the counter bearing (56a) fixed to the machine base (3) side.
6) is supported and an input pulley (58) of the speed change mechanism (46) is interlockingly connected to an output pulley (57) integrally connected to the counter shaft (56) via a belt (59), and the sirocco fan is also provided. Input pulley of (26) (48)
The output pulley (57) is connected to the transmission shaft (62) parallel to the fan shaft (26a) that is interlocked with the belt (60) and the pulley (61) via the pulley (63) and the belt (6).
4) The belt tension is influenced by transmitting the rotation of the counter shaft (55) to each part outside the seat column (24) forming the engine enclosure room (34) by interlocking connection via 4). It is possible to select a proper anti-vibration rubber for mounting the engine (21) without the engine, and to reduce the opening ratio of the insertion hole (65) of the joint shaft (55) formed on the left outer wall of the seat column (24). Hold down to
Improve the tightness of this enclosed room (34),
It is configured to promote low noise by a synergistic effect of using belt transmission without using gears or the like.

The fan shaft (26a) of the sirocco fan (26) is detachably fixed to the left side plate of the air passage guide (33) via a bolt (66).
The fan drive unit such as a pulley (48) supported on the fan shaft (26a) and supported by the fan shaft (26a) and the guide (33) are arranged in a compact state where they do not interfere with each other.

Further, the front side wall of the seat column (24) is provided so as to be close to the maximum mission case (49), and the transmission shaft (62) is provided on the front side wall of the column (24).
Side-view triangular concave recess insertion groove (6
8), the rear wall of the column (24) is also provided so as to be as close as possible to the grain tank (15) to maximize the internal volume of the engine enclosure room (34) formed in the column (24). By extending
It is configured to suppress the engine noise from propagating to the outside of the column (24) to be small and to further reduce the noise.

On the other hand, left and right ventilation inlets (69) (70) for taking in outside air into the enclosed room (34).
Is provided at a substantially diagonal position across the engine (21) of the intake port (33a) in plan view, and the left intake port (69) is provided.
Open at the rear upper position of the left wall of the room (34), and open the right intake port (70) at the rear lower position of the right wall of the room (34), respectively, to introduce outside air and right intake air from the left intake port (69). The outside air from the air passage (32) taken in through the mouth (70) is made to flow through the entire engine (21) evenly so as to promote the lowering of the engine (21) and its ambient temperature. is doing.

The intake port (69) has a dust net (71) at the entrance, and a labyrinth intake passage (75) is formed in the room (34) by the first and second partition plates (73) (74). In addition, the lower end portion of the second partition plate (74) is formed on the inclined surface (74a), and the intake passage outlet (75) is opened downward between the lower end portion of the second partition plate (74) and the left wall of the room (34).
a) is formed so as to promote the dust and the like in the outside air taken into the intake passage (75) to fall downward without being accumulated on the inclined surface (74a).

Further, air for supplying air to the engine (21) to the intake passage expansion portion (75b) between the second partition plate (74) and the left side wall of the room (34) located in front of the outlet (75a) position. The inlet side of the intake pipe (77) of the cleaner (76) is projected at a right angle to form the air cleaner (76).
The main body is arranged on the upper side surface of the seat column (24) outside the room (34) to improve maintenance of elements and the like, and the intake port is exposed to the expansion part (75b) to take in clean air. At the time of this intake, the partition plates (73) (74) are used to drive the engine (2
The suction of hot air from 1) is prevented, the intake noise is reduced, and the air cleaner (76) is allowed to suck air well.

This embodiment is constructed as described above, and the radiator (2) that requires a large opening for cooling air is used.
By arranging 2) away from the engine (21) arrangement position, it is possible to make the engine enclosure room (34) accommodating the engine (21) as a maximum sealed state and to reduce engine noise. A sirocco fan (26) can be used as a radiator cooling fan for cooling the radiator (22) by blowing air.
By using, the static and dynamic noise can be further reduced as compared with the conventional radial type fan.

Further, by providing the radiator (22) on the front side of the machine body, the maintenance can be easily performed from the front side of the machine body without removing the seat column or the like each time, and the suction of air in the sirocco fan (26) is performed. In addition, suction can be performed by avoiding the vicinity of the fan (26) with a high dust generation rate, and good work can be performed without clogging accidents such as dust and straw scraps on the fan (26) and the radiator (22). Is.

Further, during cooling of the radiator (22) by the sirocco fan (26), the air passage guide (33) also satisfactorily ventilates the enclosed room (34) at the same time. This guide (3
In the arrangement 3), a compact arrangement can be made integrally with the drive portion of the sirocco fan (26).

Although it is desirable to use a centrifugal fan such as a transverse flow fan other than the sirocco fan (26) as the radiator cooling fan, an axial flow fan may be used.

[0022]

As is apparent from the above-described embodiments, the present invention can be applied to the engine room (3) below the seat column (24).
4) Inside the engine (21) and seat column (2
4) Radiator (22) at the lower part of the front step (25)
Fans (26) for cooling the blower are respectively arranged, and an air intake (33a) of an air passage guide (33) provided at an air intake (31b) on one side of the fan (26) is provided inside the engine room (34). The engine (2
(1) is separated from the radiator (22) to enable a low noise structure in which the engine room (34) is highly sealed, and the air passage guide (33) is compactly integrated with the fan drive unit. It can be installed, and the inside of the engine room (34) can be well ventilated, so that stable engine performance can be maintained, which is a remarkable effect.

[Brief description of drawings]

FIG. 1 is a perspective explanatory view of an engine unit.

FIG. 2 is an overall side view of the combine.

FIG. 3 is an overall plan view of the combine.

FIG. 4 is a side view of an engine section.

FIG. 5 is an explanatory plan view of an engine section.

FIG. 6 is a front explanatory view of an engine section.

FIG. 7 is an explanatory plan view of an engine section.

FIG. 8 is a side view of a radiator portion.

[Explanation of symbols]

(21) Engine (22) Radiator (24) Seat Column (26) Fan (31b) Suction Port (33) Airway Guide (33a) Intake Port (34) Engine Room (Engine Enclosed Room)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akihiko Nakaya 1-32, Chayacho, Kita-ku, Osaka Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Toshinori Kiribata 1-32, Chayamachi, Kita-ku, Osaka Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Koji Moriyama 1-32, Chayamachi, Kita-ku, Osaka City Yanmar Agricultural Machinery Co., Ltd. (72) Inventor, Kazuo Kotake 1-32, Chayamachi, Kita-ku, Osaka City Yanmar Agricultural Machinery Within the corporation

Claims (1)

[Claims] 1. An air intake of an air passage guide provided at an air intake port on one side of the fan, in which an engine is installed in an engine room below the seat column, and a fan for cooling radiator airflow is installed at a step lower part in front of the seat column. A combine engine device characterized in that the mouth is exposed to the inside of the engine room.